Add "Kanzlei Demo 2" to demos data, Docker setup, and CI pipeline

lawfirm-demos/.gitlab-ci.yml

@@ -15,3 +15,21 @@ docker_demo_1:
   needs:
     - job: build_demo_1
       artifacts: true
+
+build_demo_2:
+  stage: build
+  extends: .build-next-template
+  variables:
+    IMAGE_NAME: ld1
+    WORKDIR_PATH: ./lawfirm-demos/demo-2
+
+docker_demo_2:
+  stage: dockerize
+  extends: .docker-build-template
+  variables:
+    IMAGE_NAME: ld2
+    WORKDIR_PATH: ./lawfirm-demos/demo-2
+    DOCKERFILE_PATH: Dockerfile
+  needs:
+    - job: build_demo_2
+      artifacts: true